How to execute initialization method after QApplication::exec has been called?

[Justin Sayne]

I'm working with a very simple main method like this:

int main()
{
  MyQtApp app;
  return app.exec();
}

Lets assume my app has to do some very heavy initialization which should happen after application startup (especially without any user interaction to trigger). How can I achieve this?

If I just do this:

int main()
{
  MyQtApp app;
  app.heavy_init();
  return app.exec();
}

then the even queue won't run and I can't emit signals. If I use a dedicated thread, it's still awkward because once the initialization is finished, I can't join the threads because the main thread will be executing QApplication::exec. Any ideas how to do what I'm looking for?

[mrjj]

Hi
What about a single shot timer ?
QTimer::singleShot(1000, { app.heavy_init(); } );